Resonant sonic toothbrush

A toothbrush and sound wave technology, applied in the field of personal care products, can solve the problems of non-rotation of permanent magnet components, single polarity arrangement of permanent magnet components, consumption of coil windings, etc., and achieve the effect of stable reciprocating rotation

Active Publication Date: 2016-11-16
ZHEJIANG JINDA MOTORS & ELECTRIC APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with the traditional eccentric wheel, turbine and other mechanisms, the above-mentioned patent has higher efficiency and lower noise, but the polarity arrangement of the permanent magnet assembly is single. When the center of the magnetic force line of the coil winding coincides with the center of the magnetic force line of the permanent magnet ass

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] In embodiment one, if figure 1 , figure 2 , image 3 , Figure 4 As shown, a resonant sonic toothbrush includes a housing 1, a stator winding 2, a main shaft 3, a permanent magnet assembly 4 and an electric control device, the permanent magnet assembly 4 is fixed on the main shaft 3, the stator assembly 2 is installed in the housing 1 and Arranged on the outer periphery of the permanent magnet assembly 4, the electronic control device acts on the stator winding 2 to generate a magnetic field with high-frequency conversion of the magnetic pole; the permanent magnet assembly 4 includes a magnetic core 5 and a magnet 6, and the magnetic core 5 is fixed on the main shaft 3 Above, the outer wall of the magnetic core 5 has at least two slots in a circumferential array, and two magnets 6 are installed in each of the slots, wherein the N pole of one of the magnets 6 faces outward along the radial direction of the main shaft 3, and the other The S pole of one of the magnets ...

Embodiment 2

[0039] In the second embodiment, if Figure 8 As shown, the support 16 is composed of multi-layer silicon steel laminations, the support 16 includes two independent parts, and baffles 17 are provided on both sides of the magnet 6 between the two parts of the support 16 . The supporting member 16 of the second embodiment is easy to process and assemble, and can be stacked after stamping the laminations, and secondly, it is assembled with the baffle plate 17 to reduce the cost.

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Abstract

The invention discloses a resonant sonic toothbrush for preventing the phenomenon that the main shaft of a resonant sonic toothbrush may not rotate. A permanent magnet assembly comprises a magnetic core and a magnet, wherein the magnetic core is fixed on the main shaft; at least two slots are formed in the circular array on the outer wall of the magnetic core; and two magnets are arranged in each slot, the N pole of one magnet is arranged outward along the radial direction of the main shaft, and the S pole of the other magnet is arranged outward along the radial direction of the main shaft. According to the toothbrush, two magnets with opposite magnetic poles are arranged in one slot in the magnetic core, the magnetic field generated by a stator winding is attractive to one magnet and is repellent to the other magnet, a torque is naturally formed to drive the main shaft to rotate, unstable balance point cannot occur, and the reciprocating rotation of the main shaft can be relatively stable.

Description

technical field [0001] The invention relates to the field of personal care products, in particular to a resonant sound wave toothbrush. Background technique [0002] Sonic toothbrush is a new type of toothbrush that combines sound wave technology in oral care. The toothbrush head vibrates according to the designed frequency to generate ultrasonic frequency vibration with sound waves as energy to achieve the purpose of cleaning teeth. [0003] The invention patent of authorized notification number CN205336076U discloses a high-frequency resonant oscillator for toothbrushes, including coil windings, housings, spindles, permanent magnet components, and excitation signals in the form of alternating currents are applied to coil windings and generate N An electronic control device for high-frequency conversion between poles and S poles. The coil windings are distributed around the periphery of the permanent magnet assembly; the alternating current of the coil windings changes at h...

Claims

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Application Information

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IPC IPC(8): A61C17/20A61C17/22A61C17/34H02K1/17
CPCA61C17/20A61C17/22A61C17/221A61C17/34H02K1/17
Inventor 陈惠龙田兴元冯贞建
Owner ZHEJIANG JINDA MOTORS & ELECTRIC APPLIANCES
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